| SADALLY S. B,NAZURALLY N,TALEB-HOSSENKHAN N,BHAGOOLI R.Micro-phytoplankton distribution and biomass in and around a channel-based fish farm: implications for sustainable aquaculture[J].Acta Oceanologica Sinica,2014,33(12):180-191 |
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| Micro-phytoplankton distribution and biomass in and around a channel-based fish farm: implications for sustainable aquaculture |
| 投稿时间：2013-08-08 修订日期：2013-10-16 |
| DOI：10.1007/s13131-014-0577-4 |
| 中文关键词: |
| 英文关键词:chlorophyll a micro-phytoplankton physico-chemical parameters sustainable aquaculture |
| 基金项目: |
| 作者 | 单位 | E-mail | | SADALLY S. B | Department of Biosciences, Faculty of Science, University of Mauritius, Ré
duit 80837, Mauritius | | | NAZURALLY N | Department of Biosciences, Faculty of Science, University of Mauritius, Ré
duit 80837, Mauritius | | | TALEB-HOSSENKHAN N | Department of Biosciences, Faculty of Science, University of Mauritius, Ré
duit 80837, Mauritius | | | BHAGOOLI R | Department of Biosciences, Faculty of Science, University of Mauritius, Ré
duit 80837, Mauritius
Department of Marine and Ocean Science, Fisheries and Mariculture, Faculty of Ocean Studies, Ré
duit 80837, Mauritius | rbhagooli11@gmail.com |
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| 中文摘要: |
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| 英文摘要: |
| Micro-phytoplankton density, genera composition, chlorophyll a concentration, and physico-chemical parameters were investigated at five stations (S1—near the coast; S2 and S4—at the edges of the aquaculture set-up; S3—in the center of the set-up; and S5—nearby patch of corals) in and around a coastal channelbased fish farm. The highest total micro-phytoplankton density (TPD), including diatoms, dinoflagellates and cyanobacteria, was recorded at S3 ((6.28±2.00)×106 cells/L) followed by S4 ((5.87±2.81)×105 cells/L), S1 ((4.92×105±8.70×104) cells/L), S5 ((3.54×105±5.33×104) cells/L) and S2 ((2.60±1.14)×105 cells/L). Chlorophyll a and nutrient concentrations were highest at S3 and were positively correlated with TPD. Among the 35 genera documented in this study, Chaetoceros spp. was the dominant diatom while Peridinium spp. was the most dominant dinoflagellate. Very low densities of toxic bloom-forming dinoflagellates were encountered during this study. These results suggest that occurrence of non-bloom densities of micro-phytoplankton, possibly due to the natural flushing of the existing lagoonal channel at the aquaculture site, yielded in little environmental impact and can represent an appropriate sustainable approach for future aquaculture development. |
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